A system and method for digitizing image negatives

Abstract

This invention discloses an image film digitization system and method, relating to the field of image processing technology. It solves the problems of image film digitization devices being difficult to adapt to different film sizes, and often resulting in unclear digitized images due to scratches or mold on the film surface. The image film digitization system and method includes a film scanning structure with two adjustment structures inside. Each adjustment structure has a conveying structure on its surface, and the film passes through the interior of the film scanning structure. This invention utilizes the cooperation of a conveying gear and a rotating rod. During use, the device can adjust the position of the conveying gear within the rack adjustment groove by driving the conveying gear through a U-shaped clamping plate, thereby moving the rotating shaft within the telescopic groove. This allows the device to adjust the position of the conveying gear according to the size of the film, facilitating the adaptation to different film sizes.

Description

Technical Field

[0001] This invention relates to the field of image processing, specifically to an image film digitization system and method. Background Technology

[0002] Even with the widespread use of digital cameras today, many users still take photos using film, especially negatives. In the traditional method, after the film is shot, it is developed and fixed with chemical agents. Then, it needs to be digitized using a professional film scanner or transilluminator, and then cropped, reversed, decolorized, and dusted before a normal color image can be seen on the screen.

[0003] Existing image film digitization equipment is difficult to adapt to different film sizes and often results in unclear digitized images due to scratches or mold on the film surface. Therefore, it does not meet the current needs. To address this, we propose an image film digitization system and method. Summary of the Invention

[0004] The purpose of this invention is to provide an image film digitization system and method to solve the problems mentioned in the background art, such as the difficulty in adapting the image film digitization equipment to different sizes of films, and the frequent occurrence of unclear digitized images due to scratches or mold on the film surface.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an image film digitization system, comprising a film scanning structure, wherein the film scanning structure has two adjustment structures inside, and each adjustment structure has a conveying structure on its surface, and the film passes through the interior of the film scanning structure;

[0006] The conveying structure includes a conveying gear, a rack adjusting groove, a rotating shaft, a rotating rod, a telescopic groove, and a servo motor. The film scanning structure has rack adjusting grooves located near the adjusting structure. A conveying gear is rotatably mounted inside each rack adjusting groove. A rotating shaft is fixedly mounted on both sides of each conveying gear. A rotating rod is movably mounted on the outer surface of each rotating shaft. A telescopic groove is located on the inner side of each rotating rod, and the rotating shaft slides into the telescopic groove. A servo motor is located on the rear side of each rotating rod near the rear end. The output end of the servo motor is connected to the rotating rod via a coupling.

[0007] Preferably, the conveying structure further includes snap-fit ​​plates and snap-fit ​​grooves. Snap-fit ​​grooves are provided on both sides of the rotating shaft, and two snap-fit ​​plates are fixedly installed on the inner wall of each telescopic groove. The snap-fit ​​plates are slidably inserted into the interior of the snap-fit ​​grooves.

[0008] Preferably, the film scanning structure includes a film scanning housing, control buttons, a display screen, a film transport groove, a fixing plate, a bracket, and a support frame. The film scanning housing has a film transport groove on its side, multiple control buttons on its top, a display screen on its front surface, fixing plates fixedly installed on both sides of the film scanning housing near the film transport groove, a support frame fixedly installed on the top of each fixing plate, a bracket fixedly installed on the top of each support frame, and an SD card slot on the rear side of the film scanning housing.

[0009] Preferably, the film scanning structure further includes a scanning head, an electric push rod, and a backlight. The scanning head is located at the top of the film transport groove near the center, and the electric push rod is located at the bottom of the film transport groove. The output end of the electric push rod is fixedly connected to the backlight.

[0010] Preferably, the adjustment structure includes a U-shaped clamping plate, a support plate, a movable rod, and an electric telescopic cylinder. The U-shaped clamping plate is slidably installed inside the film conveying groove. Two movable rods are fixedly installed on the side of the U-shaped clamping plate near the inner wall of the film conveying groove. An electric telescopic cylinder is provided on the inner wall of the film conveying groove near the movable rods. The output end of the electric telescopic cylinder is fixedly connected to the movable rod. A support plate is fixedly installed on the side of the U-shaped clamping plate near the film.

[0011] Preferably, the top surface of the U-shaped clamping plate is provided with a rotating groove near the conveying gear, and the conveying gear is movably engaged into the interior of the rotating groove.

[0012] Preferably, both sides of the film are provided with multiple film wheel tooth grooves, and the conveying gears are all connected to the film through the film wheel tooth grooves. The surface of the film is provided with multiple photographs.

[0013] Preferably, the bottom surface of the substrate is in contact with the top surface of the bracket and the tray, and both sides of the substrate are in contact with the surface of the U-shaped clamping plate.

[0014] Preferably, the scanning head is equipped with an optical scanning module, which includes an LED linear light source array and a CMOS sensor;

[0015] The film scanning housing is equipped with an image processing module, which is electrically connected to the control buttons and the display screen. The image processing module is equipped with a scratch repair algorithm and a convolutional neural network model to identify and repair scratches and mold spots on the film surface.

[0016] A digitization method for an image negative digitization system, the digitization method comprising the following steps:

[0017] Step A: First, insert the SD card into the SD card slot on the back of the film scanner housing to store the digitized image information. Then, align one end of the film with the film transport slot and place it on the surface of the bracket. Next, insert it between the two U-shaped clamping plates. At this time, the U-shaped clamping plates will move closer to both sides of the film by driving the movable rod through the electric telescopic cylinder, so that the position of the transport gear and the film wheel tooth groove are matched. Then, insert the film inward until the transport gear and the film wheel tooth groove are engaged.

[0018] Step B: At this point, the power to the image processing module of the film scanning housing can be turned on by the control button. The servo motor drives the rotating rod to rotate, which in turn drives the rotating shaft to rotate inside the slot through the snap-fit ​​plate. The rotating shaft drives the conveying gear to rotate, which in turn pushes the film to move the photo to a position directly below the scanning head. The optical scanning module of the scanning head then scans the surface of the film and displays the scanned image on the display screen for viewing.

[0019] Step C: When the image displayed on the screen is blurry, the backlight is raised and lowered by the electric push rod, thereby adjusting the distance between the backlight and the photo, and thus adjusting the light intensity of the backlight until the image is clear;

[0020] Step D: Scratches and mold spots on the surface of the photo are identified using a scratch repair algorithm and repaired by a convolutional neural network model to ensure that damaged negatives can be repaired and digitized.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention, through the cooperation of a conveying gear and a rotating rod, allows the device to be used by driving the conveying gear to move via a U-shaped clamping plate, thereby moving the rotating shaft inside the telescopic groove. This adjusts the position of the conveying gear inside the rack adjustment groove, allowing the device to adjust the position of the conveying gear according to the size of the film, making it convenient to adapt to different sizes of films.

[0023] 2. This invention, through the combination of a scratch repair algorithm and a convolutional neural network model, enables the device to identify scratches and mold spots on the surface of photographs using the scratch repair algorithm, and then repair them using the convolutional neural network model, thereby ensuring that damaged negatives can be repaired and digitally processed. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a cross-sectional front view of the entire invention;

[0026] Figure 3 This is a cross-sectional front view of the position of the conveying gear in this invention;

[0027] Figure 4 This is a cross-sectional side view of the location of the conveying gear in this invention;

[0028] Figure 5 This is a top cross-sectional view of the entire invention;

[0029] Figure 6 This is a cross-sectional side view of the entire invention;

[0030] Figure 7 For the present invention Figure 2 A partial structural diagram of part A in the middle.

[0031] In the diagram: 1. Film scanning structure; 101. Film scanning housing; 102. Control button; 103. Display screen; 104. Film transport groove; 105. Fixing plate; 106. Bracket; 107. Support frame; 108. Scanning head; 109. Electric push rod; 110. Backlight; 2. Adjustment structure; 201. U-shaped clamping plate; 202. Support plate; 203. Movable rod; 204. Electric telescopic cylinder; 3. Conveying structure; 301. Conveying gear; 302. Rack adjustment groove; 303. Rotating shaft; 304. Rotating rod; 305. Telescopic groove; 306. Snap-fit ​​plate; 307. Servo motor; 308. Snap-fit ​​groove; 4. Film; 5. Film wheel tooth groove; 6. Photograph. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Please see Figures 1 to 7 An embodiment of the present invention provides: an image film digitization system, including a film scanning structure 1, two adjustment structures 2 are provided inside the film scanning structure 1, and a conveying structure 3 is provided on the surface of each adjustment structure 2, and a film 4 penetrates through the interior of the film scanning structure 1.

[0034] The conveying structure 3 includes a conveying gear 301, a rack adjusting groove 302, a rotating shaft 303, a rotating rod 304, a telescopic groove 305, and a servo motor 307. The film scanning structure 1 is equipped with rack adjusting grooves 302 near the adjusting structure 2. A conveying gear 301 is rotatably mounted inside each rack adjusting groove 302. A rotating shaft 303 is fixedly mounted on both sides of the conveying gear 301. A rotating rod 304 is movably mounted on the outer surface of each rotating shaft 303. A telescopic groove 305 is provided on the inner side of each rotating rod 304. The rotating shaft 303 slides into the telescopic groove 305. A servo motor 307 is located on the rear side of the rotating rod 304 near the rear side. The output end of the servo motor 307 is connected to the rotating rod 304 via a coupling.

[0035] By cooperating with the conveying gear 301 and the rotating rod 304, the device can be used to drive the conveying gear 301 to move through the U-shaped clamping plate 201, thereby moving the rotating shaft 303 inside the telescopic groove 305. This allows the position of the conveying gear 301 inside the rack adjustment groove 302 to be adjusted according to the size of the film 4, making it convenient to adapt to different sizes of films 4.

[0036] The conveying structure 3 also includes a snap-fit ​​plate 306 and a snap-fit ​​groove 308. Both sides of the rotating shaft 303 are provided with snap-fit ​​grooves 308. Two snap-fit ​​plates 306 are fixedly installed on the inner wall of the telescopic groove 305. The snap-fit ​​plates 306 are slidably inserted into the interior of the snap-fit ​​groove 308.

[0037] The film scanning structure 1 includes a film scanning housing 101, control buttons 102, a display screen 103, a film transport groove 104, a fixing plate 105, a bracket 106, and a support frame 107. The film scanning housing 101 has a film transport groove 104 on its side. The top of the film scanning housing 101 has multiple control buttons 102. The front surface of the film scanning housing 101 has a display screen 103. Fixing plates 105 are fixedly installed on both sides of the film scanning housing 101 near the film transport groove 104. The top of the fixing plates 105 is fixedly installed with a support frame 107. The top of the support frame 107 is fixedly installed with a bracket 106. The rear side of the film scanning housing 101 has an SD card slot.

[0038] The film scanning structure 1 also includes a scanning head 108, an electric push rod 109, and a backlight 110. The scanning head 108 is located at the top of the film transport groove 104 near the center. The electric push rod 109 is located at the bottom of the film transport groove 104. The output end of the electric push rod 109 is fixedly connected to the backlight 110.

[0039] The adjustment structure 2 includes a U-shaped clamping plate 201, a support plate 202, a movable rod 203, and an electric telescopic cylinder 204. The U-shaped clamping plates 201 are all slidably installed inside the film conveying groove 104. Two movable rods 203 are fixedly installed on the side of the U-shaped clamping plate 201 near the inner wall of the film conveying groove 104. Electric telescopic cylinders 204 are provided on the inner wall of the film conveying groove 104 near the movable rods 203. The output end of the electric telescopic cylinder 204 is fixedly connected to the movable rod 203. A support plate 202 is fixedly installed on the side of the U-shaped clamping plate 201 near the film 4.

[0040] The cooperation of the support plate 202 and the bracket 106 allows the device to support both sides of the film 4 during use, preventing the film 4 from drooping due to gravity when it is located below the scanning head 108, which would result in unclear image scanning. The backlight 110 is raised and lowered by the electric push rod 109, thereby adjusting the light intensity of the backlight 110 to adapt to different photos 6 for scanning.

[0041] The top surface of the U-shaped clamping plate 201 is provided with a rotating groove near the conveying gear 301, and the conveying gear 301 is movably inserted into the interior of the rotating groove.

[0042] Multiple film wheel grooves 5 are provided on both sides of the film 4. The conveying gears 301 are connected to the film 4 through the film wheel grooves 5. Multiple photographs 6 are provided on the surface of the film 4.

[0043] The bottom surface of the film 4 is in contact with the top surface of the bracket 106 and the tray 202, and both sides of the film 4 are in contact with the surface of the U-shaped clamping plate 201.

[0044] The scanning head 108 is equipped with an optical scanning module, which includes an LED linear light source array and a CMOS sensor.

[0045] The film scanning housing 101 is equipped with an image processing module. The image processing module is electrically connected to the control button 102 and the display screen 103. The image processing module is equipped with a scratch repair algorithm and a convolutional neural network model to identify and repair scratches and mold spots on the surface of the film 4.

[0046] By combining scratch repair algorithms and convolutional neural network models, the device can identify scratches and mold spots on the surface of Photo 6 using scratch repair algorithms, and then repair them using convolutional neural network models, thus ensuring that damaged negatives can be repaired and digitized.

[0047] A digitization method for an image negative digitization system, the digitization method comprising the following steps:

[0048] Step A: First, insert the SD card into the SD card slot on the back of the film scanning housing 101 to store the digitized image information. Then, align one end of the film 4 with the position of the film transport groove 104 and place it on the surface of the bracket 106. Then, insert it between the two U-shaped clamping plates 201. At this time, the U-shaped clamping plates 201 will move towards the sides of the film 4 by driving the movable rod 203 through the electric telescopic cylinder 204, so that the position of the transport gear 301 matches the position of the film wheel tooth groove 5. Then, insert the film 4 inward until the transport gear 301 meshes with the film wheel tooth groove 5.

[0049] Step B: At this time, the power supply of the image processing module of the film scanning housing 101 can be turned on by the control button 102. The servo motor 307 drives the rotating rod 304 to rotate, which in turn drives the rotating shaft 303 to rotate inside the locking slot 308 through the locking plate 306. The rotating shaft 303 drives the conveying gear 301 to rotate, which in turn pushes the film 4 to move the photo 6 to a position directly below the scanning head 108. The optical scanning module of the scanning head 108 scans the surface of the film 4 and displays the scanned image on the surface of the display screen 103 for personnel to view.

[0050] Step C: When the image displayed on the display screen 103 is blurry, the backlight 110 is raised and lowered by the electric push rod 109, thereby adjusting the distance between the backlight 110 and the photo 6, and thus adjusting the light intensity of the backlight 110 until the image is clear.

[0051] Step D: The scratches and mold spots on the surface of Photo 6 are identified by the scratch repair algorithm and repaired by the convolutional neural network model to ensure that the damaged negatives can be repaired and digitized.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An image film digitization system, comprising a film scanning structure (1), characterized in that: The film scanning structure (1) has two adjustment structures (2) inside, and each adjustment structure (2) has a conveying structure (3) on its surface. The film (4) passes through the interior of the film scanning structure (1). The conveying structure (3) includes a conveying gear (301), a rack adjustment groove (302), a rotating shaft (303), a rotating rod (304), a telescopic groove (305), and a servo motor (307). The film scanning structure (1) is provided with a rack adjustment groove (302) near the adjustment structure (2). The conveying gear (301) is rotatably installed inside the rack adjustment groove (302). The rotating shaft (303) is fixedly installed on both sides of the conveying gear (301). The rotating rod (304) is movably installed on the outer surface of the rotating shaft (303). The telescopic groove (305) is provided on the inner side of the rotating rod (304). The rotating shaft (303) is slidably inserted into the telescopic groove (305). The servo motor (307) is provided on the rear side of the rotating rod (304) near the rear side. The output end of the servo motor (307) is connected to the rotating rod (304) through a coupling.

2. The image film digitization system according to claim 1, characterized in that: The conveying structure (3) also includes a snap-fit ​​plate (306) and a snap-fit ​​groove (308). Both sides of the rotating shaft (303) are provided with snap-fit ​​grooves (308). Two snap-fit ​​plates (306) are fixedly installed on the inner wall of the telescopic groove (305). The snap-fit ​​plates (306) are slidably inserted into the inside of the snap-fit ​​groove (308).

3. The image film digitization system according to claim 2, characterized in that: The film scanning structure (1) includes a film scanning housing (101), control buttons (102), a display screen (103), a film transport groove (104), a fixing plate (105), a bracket (106), and a support frame (107). The side of the film scanning housing (101) is provided with a film transport groove (104). The top of the film scanning housing (101) is provided with multiple control buttons (102). The front surface of the film scanning housing (101) is provided with a display screen (103). Fixing plates (105) are fixedly installed on both sides of the film scanning housing (101) near the film transport groove (104). The top of the fixing plate (105) is fixedly installed with a support frame (107). The top of the support frame (107) is fixedly installed with a bracket (106). The rear side of the film scanning housing (101) is provided with an SD card slot.

4. The image film digitization system according to claim 3, characterized in that: The film scanning structure (1) also includes a scanning head (108), an electric push rod (109), and a backlight (110). The scanning head (108) is located at the top of the film conveying groove (104) near the center. The electric push rod (109) is located at the bottom of the film conveying groove (104). The output end of the electric push rod (109) is fixedly connected to the backlight (110).

5. The image film digitization system according to claim 4, characterized in that: The adjustment structure (2) includes a U-shaped clamping plate (201), a support plate (202), a movable rod (203), and an electric telescopic cylinder (204). The U-shaped clamping plate (201) is slidably installed inside the film conveying groove (104). Two movable rods (203) are fixedly installed on the side of the U-shaped clamping plate (201) near the inner wall of the film conveying groove (104). An electric telescopic cylinder (204) is provided on the inner wall of the film conveying groove (104) near the movable rods (203). The output end of the electric telescopic cylinder (204) is fixedly connected to the movable rod (203). A support plate (202) is fixedly installed on the side of the U-shaped clamping plate (201) near the film (4).

6. The image film digitization system according to claim 5, characterized in that: The top surface of the U-shaped clamping plate (201) is provided with a rotating groove near the conveying gear (301), and the conveying gear (301) is movably inserted into the interior of the rotating groove.

7. The image film digitization system according to claim 1, characterized in that: The film (4) has multiple film wheel grooves (5) on both sides of its surface. The conveying gears (301) are connected to the film (4) through the film wheel grooves (5). The surface of the film (4) has multiple photographs (6).

8. The image film digitization system according to claim 5, characterized in that: The bottom surface of the substrate (4) is in contact with the top surface of the bracket (106) and the tray (202), and both sides of the substrate (4) are in contact with the surface of the U-shaped clamping plate (201).

9. The image film digitization system according to claim 4, characterized in that: The scanning head (108) is equipped with an optical scanning module, which includes an LED linear light source array and a CMOS sensor; The film scanning housing (101) is equipped with an image processing module. The image processing module is electrically connected to the control button (102) and the display screen (103). The image processing module is equipped with a scratch repair algorithm and a convolutional neural network model to identify and repair scratches and mold spots on the surface of the film (4).

10. A digitization method applied to the image negative digitization system according to any one of claims 1-9, characterized in that: The digitization method includes the following steps: Step A: First, insert the SD card into the SD card slot on the back of the film scanning housing (101) to store the digitized image information. Then, align one end of the film (4) with the position of the film transport groove (104) and place it on the surface of the bracket (106). Then, insert it between the two U-shaped clamping plates (201). At this time, the U-shaped clamping plates (201) will move by driving the movable rod (203) through the electric telescopic cylinder (204) to move the U-shaped clamping plates (201) closer to both sides of the film (4), so that the position of the transport gear (301) matches the position of the film wheel tooth groove (5). Then, insert the film (4) inward until the transport gear (301) meshes with the film wheel tooth groove (5). Step B: At this time, the power supply of the image processing module of the film scanning housing (101) can be turned on by the control button (102). The rotating rod (304) is driven to rotate by the servo motor (307), which in turn drives the rotating shaft (303) to rotate inside the slot (308) through the snap plate (306). The rotating shaft (303) drives the conveying gear (301) to rotate, which in turn pushes the film (4) to move. The photo (6) is moved to the position directly below the scanning head (108), so that the optical scanning module of the scanning head (108) scans the surface of the film (4) and displays the scanned image on the display screen (103) for personnel to view. Step C: When the image displayed on the display screen (103) is blurry, the backlight (110) is raised and lowered by the electric push rod (109) to adjust the distance between the backlight (110) and the photo (6), thereby adjusting the light intensity of the backlight (110) until the image is clear; Step D: The scratches and mold spots on the surface of the photo (6) are identified by the scratch repair algorithm and repaired by the convolutional neural network model to ensure that the damaged negative is repaired and digitally processed.

Images